What is the waterproof construction practice of bathroom floor drain?

Floor drain is the part of the ground drainage concentration, is easy to produce leakage, and the cast iron floor drain mouth is small in the bottom, in contact with the concrete on the outer surface, due to the shrinkage of the concrete is easy to produce cracks, resulting in leakage along the floor drain around the bottom floor should generally be reserved holes on the floor slab, and then install the floor drain, the floor drain should be installed and fixed after the detailed waterproofing.

Toilet waterproofing project, bathroom floor drain detail waterproofing practice:

Determine the elevation and install the fixed cushion slope to lay the leveling layer, seal the waterproof additional layer around the floor drain, lay the waterproof layer, store the test, lay the surface layer and place the floor drain grate; Pouring sweet plate hole:

After the floor drain and riser are installed and fixed, the concrete and stones around the hole are cleaned up, and then the template is supported at the bottom of the slab, watered and moistened, and C20 fine stone concrete mixed with expansion agent is poured, and compacted, plugged and smoothed;

Slope finding and groove: the ground slope is found, the screed layer finds out the slope of 1% 2% to the floor drain, the drainage slope of the floor drain edge outward 50mm is 3% 5%, and the upper mouth of the floor drain is left with a 20mm 20mm groove.

Groove filling coating film: the groove around the upper mouth of the floor drain is tightly embedded with sealing material, and then the waterproof additional layer of the coating film is paved with the carcass reinforcement material, and the depth of the additional layer coating film extending into the mouth of the floor drain cup should not be less than 50mm, and then the waterproof coating is painted according to the design requirements;

Water storage test: do a good job in the water storage test, and observe that there is no leakage to be qualified;

Waterproof tray: In order to solve the problem of small bottom of the cast iron floor drain and poor combination with concrete, the waterproof tray can be added at the original leakage place to improve the waterproof quality of the floor drain.

The details are as follows:1Bathroom floor drain waterproof method: base surface (substrate) treatment:

Make the base surface smooth, firm and clean, free of dust, greasy, wax, holes, hole cracks, etc.

The perimeter of the floor drain, the nozzle and the perimeter of the flue are first anchored with nozzle grout.

The yin and yang angles of the base surface need to be treated into an arc shape.

The newly poured concrete surface needs to be completely dry and solid before construction.

2.Bathroom floor drain waterproof practice: How to use:

Stirring: Pour the liquid material into the container first, then slowly add the powder, and stir thoroughly for 3 to 5 minutes until a homogeneous slurry without powder and particles is formed.

Brushing: Brush directly on the base surface with a brush or roller brush, with uniform strength and no missing brushing; Generally, it needs to be painted more than 2 times, and the thickness of each painting cannot be exceeded;

3.Toilet floor drain waterproof practice: maintenance: It is recommended to sprinkle water to maintain the coating when the construction is small.

4.Bathroom floor drain waterproof practice: inspection: according to the waterproof construction process, carefully inspect and accept each process, the waterproof layer has no bulging, trachoma, cracking, warping and other defects, and the surface is smooth.

"Closed water" test: toilets, pools and other parts are used to check whether the waterproof construction is qualified for water storage hours after drying.

Bathroom waterproof project, bathroom leakage detail waterproofing:

Determine the elevation leakage, install the fixed cushion slope finding, lay the leveling layer, seal the leakage perimeter, seal the waterproof additional layer, lay the waterproof layer, test the laying surface layer, and place the leakage grate; Pouring sweet plate hole:

The leakage riser is installed and fixed, and the concrete and stone around the hole are cleaned up, the bottom of the slab is watered, the formwork is watered, the C20 is mixed with expansion agent, the fine stone concrete is poured, and the concrete is tamped, plugged and smoothed;

Slope finding and groove: face slope leveling layer to the leakage to find 1% 2% slope leakage outward 50mm drainage slope 3% 5% leakage around the 20mm 20mm groove.

Groove filling and coating film: the groove around the leak is tightly embedded with sealing material, and then the carcass reinforcement material is coated with a waterproof additional layer, and the additional layer of coating film extends into the leakage cup with a depth of less than 50mm, and the waterproof coating is applied according to the design requirements;

Water storage test: carefully do the water storage test to observe the leakage qualified;

Waterproof tray: Solve the problem of leakage water around the bottom of the cast iron leakage and the concrete leakage, and add a waterproof tray at the original leakage to improve the leakage waterproof quality.